Working with substances hazardous to health

Working with substances hazardous to health What you need to know about COSHH Introduction This leaflet describes how to control hazardous substances at work so that they do not cause ill health. It will help you understand what you need to do to comply with the Control of Substances Hazardous to Health (COSHH) Regulations 2002 (as amended) which apply to the way you work with these substances. If you run a small business or are self-employed, you need this information to make sure you are protecting your employees. If you run a medium-sized or large business, where decisions about controlling hazardous substances are more complex, you will also need professional advice. The leaflet will also be useful for trade union and employee health and safety representatives. This is a web-friendly version of leaflet INDG136(rev4), revised 06/09 Why do I need to read this leaflet? Every year, thousands of workers are made ill by hazardous substances, contracting lung disease such as asthma, cancer and skin disease such as dermatitis. These diseases cost many millions of pounds each year to: industry, to replace the trained worker; society, in disability allowances and medicines; and individuals, who may lose their jobs. You, as the employer, are responsible for taking effective measures to control exposure and protect health. These measures can also improve production or cut waste. Looking after your business Myth Of course it s safe we ve always done it this way. Reality Some diseases take years to develop. If exposure is high because the task has always been done that way, maybe it s time for a change. Your aim in running your business is to make a profit. You know what you do, and how you are doing it. You know what processes and tasks are involved. You know the short cuts. Ensuring your workers remain healthy may also lead to healthy profits. Which substances are harmful? Dusty or fume-laden air can cause lung diseases, eg in welders, quarry workers or woodworkers. Metalworking fluids can grow bacteria and fungi which cause dermatitis and asthma. Flowers, bulbs, fruit and vegetables can cause dermatitis. Wet working, eg catering and cleaning, can cause dermatitis. Benzene in crude oil can cause leukaemia. 1 of 10 pages

Myth It s natural so it can t be harmful. Reality Natural materials can be harmful. For example, henna can cause dermatitis and asthma, wood dust can cause asthma, stone or concrete dust can cause lung disease such as silicosis, and citrus oils can cause skin problems. Many other products or substances used at work can be harmful, such as paint, ink, glue, lubricant, detergent and beauty products. Ill health caused by these substances used at work is preventable. Many substances can harm health but, used properly, they almost never do. Find out the dangers in your business ask your supplier, your trade association, and check for your trade on HSE s website: www.hse.gov.uk. Substances can also have dangerous properties. They may be flammable, for example solvent-based products may give off flammable vapour. Clouds of dust from everyday materials, such as wood dust or flour, can explode if ignited. This leaflet does not deal with flammability or explosion hazards (see Find out more ). Look at each substance Which substances are involved? In what way are they harmful? You can find out by: checking information that came with the product, eg a safety data sheet; asking the supplier, sales representative and your trade association; looking in the trade press for health and safety information; checking on the Internet, eg HSE s website pages for your trade. Think about the task If the substance is harmful, how might workers be exposed? Breathing in gases, fumes, mist or dust? Contact with the skin? Swallowing? Contact with the eyes? Skin puncture? Bear these in mind when you look at the tasks. Exposure by breathing in Once breathed in, some substances can attack the nose, throat or lungs while others get into the body through the lungs and harm other parts of the body, eg the liver. Exposure by skin contact Some substances damage skin, while others pass through it and damage other parts of the body. Skin gets contaminated: Myth I don t work with harmful substances. Reality Most businesses use substances that can be hazardous to health even something as simple as flour can act as a substance hazardous to health. by direct contact with the substance, eg if you touch it or dip your hands in it; by splashing; by substances landing on the skin, eg airborne dust; by contact with contaminated surfaces this includes contact with contamination inside protective gloves. Exposure by swallowing People transfer chemicals from their hands to their mouths by eating, smoking etc without washing first. Exposure to the eyes Some vapours, gases and dusts are irritating to eyes. Caustic fluid splashes can damage eyesight permanently. Exposure by skin puncture Risks from skin puncture such as butchery or needlestick injuries are rare, but can involve infections or very harmful substances, eg drugs. 2 of 10 pages

Safety data sheets European symbols T+ Toxic Very toxic Harmful Irritant F+ Highly Extremely Explosive Dangerous to flammable flammable the environment Oxidising Corrosive New International symbols i Products you use may be dangerous for supply. If so, they will have a label that has one or more hazard symbols. S These products include common substances in everyday use such as paint, bleach, solvent or fillers. When a product is dangerous for supply, by law, the supplier must provide you with a safety data sheet. Note: medicines, pesticides and cosmetic products have different legislation and don t have a safety data sheet. Ask the supplier how the product can be used safely. Safety data sheets can be hard to understand, with little information on measures for control. However, to find out about health risks and emergency situations, concentrate on: Part 15 of the sheet, which tells you what the dangers are; Parts 4 to 8, which tell you about emergencies, storage and handling. International symbols will replace the European symbols in 2009. Some of them are similar to the European symbols but there is no single word describing the hazard. Read the hazard statement on the packaging and the safety data sheet from the supplier. Hazard checklist Does any product you use have a danger label? Does your process produce gas, fume, dust, mist or vapour? Is the substance harmful to breathe in? Can the substance harm your skin? Is it likely that harm could arise because of the way you use or produce it? What are you going to do about it? Use something else? Use it in another, safer way? Control it to stop harm being caused? Assessing risk Risk assessment is not just a paper exercise. It s about taking sensible steps to prevent ill health. You need to know how workers are exposed, and to how much, before you can decide if you need to do anything to reduce their exposure. The COSHH Regulations require employers to assess the risk to their employees, and to prevent or adequately control those risks. Sometimes, it s easy to judge the amount of exposure to substances and decide what you can do about it. When the task involves very small amounts of material, even if these are harmful, when there is little chance of it escaping, the risk is low. But the risk in a different task such as cleaning up and disposal will be higher because the harmful substance may be breathed in or get onto the skin. When the task involves larger amounts of material, with obvious leaks, exposure is higher and so is the risk. Whether the substance is harmful or not, your need to control it is obvious. Decide what measures you need to take, and when. 3 of 10 pages

Myth What do you expect it s a dirty job! Reality Why does your job need to be dirty? Think about changing the way you work to produce cleaner processes. If you have five or more employees, you must record your assessment but, even if you have fewer than five, it makes sense to write down what steps you have taken to identify the risks. And the really important part is making a list of the actions you are taking to control the risks to health. You can look at examples of risk assessments for different industries on www.hse.gov.uk/risk/casestudies. HSE has developed a free internet tool for identifying good control practice: www.coshh-essentials.org.uk. It covers a wide range of processes and activities and also produces advice for products that have safety data sheets. However, there may be no good practice advice available for your process. Where this is small-scale with obvious control measures, you can do the assessment yourself. In other cases, or where you are not sure, ask your supplier, trade association, HSE s Infoline, or other reliable information sources. You may need professional advice such as from an occupational hygienist see Getting help. What are exposure control measures? Control measures are always a mixture of equipment and ways of working to reduce exposure. The right combination is crucial. No measures, however practical, can work unless they are used properly. So any standard operating procedure should combine the right equipment with the right way of working. This means instructing, training and supervising the workers doing the tasks. You need control measures that work and continue to work all day, every day. Examples of control measures Substance, Control Way of working Managing process equipment Cleaning with solvent on rag. Use a rag holder. Provide a small Avoid skin contact. Reduce solvent vapour from Check controls are used. bin with a lid for used rags. Safe disposal. used rags. Dust and Put an enclosure Check the airflow indicator. Maintain controls. sparks from abrasive wheel. around the wheel and extract the air to a safe place. Make sure the extraction works. Test controls as required by law. Fume from Ventilated welding Work outdoors upwind of the Check if there is any cutting demolition helmet, gloves. Washing facilities. fume wherever possible. Allow the fume to clear before lead paint on the scrap being cut. scrap. removing helmet. Carry out health checks. Cutting-fluid mist from a lathe. Swarf. Dust from disc cutter on stone worktop. Put an enclosure around the lathe and extract the air to a safe place. Protective gloves. Use an enclosure to extract air to a safe place. High-efficiency vacuum cleaner. Use skin-care products. Make sure the extraction works. Allow time for the mist to clear from the enclosure before opening it. Cut and polish worktops inside an enclosure. Vacuum up dust. Train workers. Check and maintain fluid quality. Test controls as required by law. Carry out health checks. Test and maintain controls. Carry out health checks. 4 of 10 pages

Myth They wouldn t sell it to us if it wasn t safe. Reality Just because something is available to buy, does not mean it is safe you can buy cyanide for industrial use. Choosing control measures In order of priority: 1 Eliminate the use of a harmful product or substance and use a safer one. 2 Use a safer form of the product, eg paste rather than powder. 3 Change the process to emit less of the substance. 4 Enclose the process so that the product does not escape. 5 Extract emissions of the substance near the source. 6 Have as few workers in harm s way as possible. 7 Provide personal protective equipment (PPE) such as gloves, coveralls and a respirator. PPE must fit the wearer. If your control measures include 5, 6 and 7, make sure they all work together. Control equipment Control equipment comes in many forms. It includes ventilation to extract dust, mist and fume; glove boxes and fume cupboards; spray booths and refuges (clean rooms in dirty work areas). It also includes using water to reduce dust, and systems for disinfecting cooling water. For control equipment, your supplier should provide a user manual. If you don t have one, ask for it. And if this is impossible, you may need professional help to write one. The user manual should set out schedules for checks, maintenance and parts replacement. For example it should include: a description of the system; the daily checks the worker or supervisor needs to carry out, eg the ventilation is turned on, the airflow meter gives the right reading; the weekly or monthly checks the supervisor or owner needs to carry out, eg of equipment wear and tear, and that short cuts are not creating dangers; details of any thorough examination and test; signs of wear and control failure; a list of replaceable parts; a description of how operators should use the system so it works effectively. Remedy defects in good time. It is pointless making checks if you take no action when something is wrong. And you are not managing health and safety properly if the thorough examination and test produces a long list of actions needed. Keep simple records of your checks and actions, eg in a logbook, and keep these records for at least five years. Staying in control: checking and maintaining Once you ve got control you need to keep it. As the employer, you must make sure that the control measures (equipment and the way of working) keep working properly. You should name someone to be in charge of checking and maintaining control measures. It could be you, or someone you appoint, as long as they know what they need to do, and are able to do it. That is, they are competent to: check that the process isn t emitting uncontrolled contaminants; check that the control equipment continues to work as it was designed; check that workers follow the right way of working. 5 of 10 pages

Myth I ve given them all masks problem solved! Reality This won t solve it. Control the source of exposure and then they might not need masks. Two of the most common control measures where maintenance is critical are local exhaust ventilation (LEV) and personal protective equipment (PPE). Local exhaust ventilation (LEV) If you use local exhaust ventilation to control exposure, it needs regular checking and thorough examination and testing at least once a year. Many people, eg engineers or insurance companies can carry out thorough examination and testing of LEV. Whoever does the work must be competent see Getting help. Personal protective equipment (PPE) Personal protective equipment is often used as part of control measures. This also needs checking and maintenance because, if it fails, it no longer provides protection and exposes the wearer to danger. The users need to know exactly what they are doing, and so do the supervisors. PPE suppliers, trade associations and HSE Infoline can tell you about training in how to use it properly. See Getting help and Further information. Checklist for good control practice Do you design and run your processes to keep the spread of contaminants as low as possible? Do you think about all routes of exposure breathing in, on skin or swallowing? Do you choose control measures according to the amount of substance, how it gets into the body and how much harm it will cause? Do you make sure that measures are effective, easy to use, and work properly? Do you also need to issue personal protective equipment (PPE)? Do you check regularly that measures continue to work, and keep simple records? Do you tell workers about the dangers and how to use control measures properly? Do you avoid increasing the overall health and safety risks when making changes? Skills and experience Competence Ensure that whoever designs, installs, maintains and tests your control measures is competent they have the necessary skills, knowledge and experience. You can assess the competence of equipment and service providers with questions such as: Have you done this sort of work before? What are your qualifications? Do you belong to a professional organisation? Can I speak to previous clients? Ideally, you want someone who knows your industry, has a successful track record, and gives good value for money. 6 of 10 pages

Worker involvement Involve your workers in developing control measures to make sure they are suitable for the way they carry out the work. Encourage them to suggest improvements, and to report anything they think might be going wrong. Training, instruction and information Explain to your workers, and anyone else who needs to know, what the dangers are. It is poor practice just to hand them a page of written information. Show workers how to use control measures properly, and how to check that they are working. Carry out practice drills for cleaning up spills safely do this before any spillages happen. If workers need to use respirators, they also need face fitting and training. If they need to use protective gloves, they need to know how to put them on and take them off without contaminating their skin. See Find out more. Keeping workers healthy Monitoring exposure Monitoring normally means air sampling but it may also involve taking biological samples, eg breath or urine. Monitoring normally makes reference to Workplace Exposure Limits (WELs) published by HSE. These limits should not be exceeded (see EH40 in Find out more ). It is wasteful to try monitoring before you have put any control measures in place (see COSHH essentials sheet G409 www.hse.gov.uk/pubns/guidance/g409.pdf on air monitoring). Health checks If your trade press, HSE, or other information, shows there is a problem with health in your trade, such as asthma or dermatitis, your employees may need special health checks. The most common checks are for respiratory disease such as asthma and skin disease. See Find out more. REACH REACH is a new European Union regulation concerning the Registration, Evaluation, Authorisation and restriction of CHemicals. It came into force on 1 June 2007 and replaces a number of European Directives and Regulations with a single system. REACH will operate alongside COSHH and is designed so that better information on the hazards of chemicals and how to use them safely will be passed down the supply chain by chemical manufacturers and importers through improved safety data sheets. Further information can be found on HSE s website: www.hse.gov.uk/ reach/ and on the European Chemical Agency s website: www.echa. europa.eu/home_en.asp. 7 of 10 pages

Getting help What and who? Trade association HSE Consultants/service suppliers Local health and safety groups Good control Testing LEV Training Monitoring Health checks This is not an inclusive list, but some useful sources of information and help are: British Occupational Hygiene Society (BOHS) 5/6 Melbourne Business Court, Millennium Way, Pride Park, Derby, DE24 8LZ. Tel: 01332 298101 www.bohs.org. BOHS is the professional body for occupational hygienists, who understand how workplace hazards affect worker health and systems to control risks to health from work. The website has a list of consultants. Health & Safety Laboratory (HSL) Business Development Group, Health & Safety Laboratory, Harpur Hill, Buxton, Derbyshire SK17 9JN. Tel: 01298 218000 www.hsl.gov.uk. HSL s services include specialist advice and consultancy, risk assessment, and workplace monitoring (including biological monitoring). Institution of Occupational Safety and Health (IOSH) The Grange, Highfield Drive, Wigston, Leicestershire LE18 1NN. Tel: 0116 257 3100 www.iosh.co.uk. IOSH is the association for health and safety professionals. The website allows you to search for consultants. United Kingdom Accreditation Service (UKAS) 21-47 High Street, Feltham, Middlesex TW13 4UN. Tel: 020 89178400 www.ukas.com. The UKAS website has a search function to find accredited testing and inspection service providers. Trade associations Health and safety information is often produced by trade associations and published in the trade press. Occupational health professionals (doctors or nurses) Look in Yellow Pages or other trade indexes for occupational health under Health and Safety Consultants or Health Authorities and Services, or visit www.nhsplus.nhs.uk. Safety Groups UK (SGUK) Edgbaston Park, 353 Bristol Road, Edgbaston, Birmingham B5 7ST Tel: 0121 248 2011 www.safetygroupsuk.org.uk 8 of 10 pages

Find out more A short guide to the Personal Protective Equipment at Work Regulations 1992 Leaflet INDG174(rev1) HSE Books 2005 (single copy free or priced packs of 15 ISBN 978 0 7176 6141 1) www.hse.gov.uk/pubns/indg174.pdf Clearing the air: A simple guide to buying and using local exhaust ventilation (LEV) Leaflet INDG408 HSE Books 2008 (single copy free or priced packs of 15 ISBN 978 0 7176 6301 9) EH40/2005 Workplace exposure limits: Containing the list of workplace exposure limits for use with the Control of Substances Hazardous to Health Regulations 2002 (as amended) Environmental Hygiene Guidance Note EH40 HSE Books 2005 ISBN 978 0 7176 2977 0 Fire and explosion: How safe is your workplace? A short guide to the Dangerous Substances and Explosive Atmospheres Regulations Leaflet INDG370 HSE Books 2002 (single copy free or priced packs of 5 ISBN 978 0 7176 2589 5) www.hse.gov.uk/pubns/indg370.pdf Preventing contact dermatitis at work Leaflet INDG233(rev1) HSE Books 2007 (single copy free or priced packs of 15 ISBN 978 0 7176 6183 1) www.hse.gov.uk/pubns/indg233.pdf Read the label: How to find out if chemicals are dangerous Leaflet INDG352 HSE Books 2002 (single copy free or priced packs of 15 ISBN 978 0 7176 2366 2) www.hse.gov.uk/pubns/indg352.pdf Respiratory sensitisers and COSHH: Breathe freely An employers leaflet on preventing occupational asthma Leaflet INDG95(rev2) HSE Books 1995 (single copy free or priced packs of 15 ISBN 978 0 7176 0914 7) www.hse.gov.uk/pubns/ indg95.pdf 9 of 10 pages

Further information HSE priced and free publications are available by mail order from HSE Books, PO Box 1999, Sudbury, Suffolk CO10 2WA Tel: 01787 881165 Fax: 01787 313995 Website: www.hsebooks.co.uk (HSE priced publications are also available from bookshops and free leaflets can be downloaded from HSE s website: www.hse.gov.uk.) For information about health and safety ring HSE s Infoline Tel: 0845 345 0055 Fax: 0845 408 9566 Textphone: 0845 408 9577 e-mail: hse.infoline@natbrit.com or write to HSE Information Services, Caerphilly Business Park, Caerphilly CF83 3GG. This leaflet contains notes on good practice which are not compulsory but which you may find helpful in considering what you need to do. This leaflet is available in priced packs of 10 from HSE Books, ISBN 978 0 7176 6363 7. Single free copies are also available from HSE Books. Crown copyright This publication may be freely reproduced, except for advertising, endorsement or commercial purposes. First published 06/09. Please acknowledge the source as HSE Published by the Health and Safety INDG136(rev4) 10 of 10 pages